Capacity increasing method for nano particle modified carbon fiber sizing agent

A technology of nano-particles and modified carbon, which is applied in the fields of carbon fiber, fiber treatment, textiles and papermaking, etc. It can solve the problems of poor compatibility and easy agglomeration, and achieve the effects of improving heat resistance, simple operation and improving interface performance

Active Publication Date: 2016-04-20
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In order to solve the problem of poor compatibility and easy agglomeration between nanoparticles and resin in the process of using nanoparticle modified carbon fiber sizing agent, the present invention provides a compatibilization method for nanoparticle modified carbon fiber sizing agent, which The method can realize the compatibilization of nanoparticles without affecting the heat resistance of the sizing agent, and can be applied in the process of nanoparticle modified carbon fiber sizing agent

Method used

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  • Capacity increasing method for nano particle modified carbon fiber sizing agent
  • Capacity increasing method for nano particle modified carbon fiber sizing agent
  • Capacity increasing method for nano particle modified carbon fiber sizing agent

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specific Embodiment approach 1

[0036] Specific embodiment one: The compatibilization method for nanoparticle modified carbon fiber sizing agent provided in this embodiment is divided into the following two steps:

[0037] One, 100 parts by mass of nano-SiO 2 and 10 parts by mass of SO1458POSS were dissolved in acetone, and ultrasonically dispersed for 15 minutes to obtain nano-SiO 2 Dispersion, the dispersion was spread on a glass slide for contact angle measurement as Figure 2-3 shown. Depend on figure 2 It can be seen that POSS forms a film on the glass surface, and the contact angle of water is 90°; image 3 It can be seen that the dispersion liquid forms a film on the glass surface, and the contact angle of water is 130°.

[0038] 2. Mix the dispersion liquid in the first step with epoxy resin and emulsifier evenly to control the nano-SiO 2 The mass ratio of the mixture of SO1458POSS to epoxy resin and emulsifier is 15:100:50, the organic solvent is removed by distillation under reduced pressure,...

specific Embodiment approach 2

[0039] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the amount of SO1458POSS in step 1 is 50 parts by mass, and other contents are the same as Embodiment 1. Depend on Figure 4 It can be seen that the dispersion liquid forms a film on the glass surface, and the contact angle of water is 139°.

specific Embodiment approach 3

[0040] Specific embodiment three: the difference between this embodiment and specific embodiment one is that in step one, SiO 2 The consumption of is 50 mass parts, and other content is identical with specific embodiment one. Depend on Figure 6 It can be seen that for different proportions of nano-SiO 2 It can be seen from the thermogravimetric analysis of the sizing agent of POSS that the introduction of POSS can improve the nano-SiO 2 Heat resistance properties of modified carbon fiber sizing agents.

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Abstract

The invention discloses a capacity increasing method for a nano particle modified carbon fiber sizing agent. The capacity increasing method comprises steps as follows: (1), nano particles, POSS (polyhedral oligomeric silsesquioxane) and a catalyst are dissolved in an organic solvent and subjected to ultrasonic treatment for 5-20 min, and a nano particle dispersion liquid is obtained; (2), the nano particle dispersion liquid in the step (1) is uniformly mixed with epoxy resin and an emulsifier, an organic solvent in the mixture is removed through distillation under reduced pressure, and a corresponding sizing agent emulsion is prepared with a phase inversion method. POSS and the nano particles are introduced into the sizing agent simultaneously, advantages of POSS and the nano particles can be combined, and the problems of poor compatibility and high probability of agglomeration and demulsification of the nano particles in the sizing agent can be solved; besides, in comparison with traditional coating modification and coupling agent modification, the treatment method adopting POSS as a capacity increasing agent is simple, and more excellent heat resistance is acquired.

Description

technical field [0001] The invention relates to a compatibilization method for a nano particle modified carbon fiber sizing agent. Background technique [0002] With its excellent performance and broad application prospects in national defense and military industry, carbon fiber has become an important strategic material for research and development in various countries. More than 95% of carbon fiber is carbon, but because of its special turbostratic graphite structure, its specific strength and specific modulus are even higher than traditional metal materials such as steel, and it also has the characteristics of corrosion resistance and aging resistance Therefore, carbon fiber reinforced resin matrix composites were first applied in aerospace, weaponry and other fields that have strict quality requirements. With the increasing maturity of carbon fiber production technology and the further improvement of material performance requirements in civil fields, the application of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/79D06M11/46D06M11/44D06M13/513D06M15/55D06M101/40
CPCD06M11/44D06M11/46D06M11/79D06M15/55D06M15/643D06M2101/40
Inventor 刘丽郑晓强黄玉东贾储源
Owner HARBIN INST OF TECH
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